#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<vector>
#include<string>
using namespace std;
class Solution {
public:
    vector<vector<int>> generate(int numRows) {
        vector<vector<int>> v;
        v.resize(numRows);
        for (int i = 0; i < numRows; i++)
        {
            v[i].resize(i + 1);
            v[i][0] = v[i][i] = 1;
        }
        for (int i = 0; i < numRows; i++)
        {
            for (int j = 0; j < i + 1; j++)
            {
                if (v[i][j] != 1)
                    v[i][j] = v[i - 1][j - 1] + v[i - 1][j];
            }
        }
        return v;
    }
};

int main()
{
    //Solution().generate(3);
    string s;
    cout << s.size() << endl;
    return 0;
}